JP2000175955A - Laser therapy instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily execute work in spite of a dark illumination in a room and also to permit even a person in circumference to easily and visually recognize the operation state of a device by providing the illumination for irradiating the circumferential foot part of a laser medical treatment device in a device main body or an accessory unit. SOLUTION: An eye ground of a patient is irradiated with a medical treatment laser beam and beam coagulation or the like is executed in a laser beam coagulation device. In the case of the execution, a laser beam source for a medical treatment and an optical system by which the laser beam is made incident to an optical fiber 2 are stored in the device main body and a control box 3 or the like for setting and displaying a laser irradiating condition is arranged. In this case, four foot lamp parts 10 for illuminating the circumferential foot (floor) of the device are disposed one by one on the four surfaces of a case lower part in the device main body 1. lamps emitting a blue illumination light and the lamps emitting a red illumination light are arranged in the foot lamp parts 10 and they are fitted to turn the illumination light downward to illuminate the floor surface in the circumference of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser treatment apparatus which performs treatment by irradiating an affected part with a treatment laser beam from a laser light source.

[0002]

2. Description of the Related Art There is known a laser treatment apparatus for performing photocoagulation or the like by irradiating a treatment laser beam to a fundus of a patient's eye. In general, when using these laser treatment devices, the illumination in the room is darkened to make it easier to observe the patient's eyes with illumination light (slit light or the like) from the laser treatment device.

[0003]

There is an assistant who assists an operator in performing an operation, and the assistant often works while moving in a dark room as requested by the operator. However, there are many obstacles on the floor around the device, such as equipment and cables necessary for surgery, and it is difficult to see these when the room is dark, so the assistant must move and work carefully. Must. For this reason, there was a problem that work was difficult and efficiency was low.

In addition, it is necessary for not only the surgeon but also the assistant in the room to know the operating state of the laser treatment apparatus during operation (the state in which laser light can be emitted, the standby state, etc.). However, it has been difficult for the conventional laser treatment apparatus to grasp the operating state of the apparatus from the surroundings.

The present invention has been made in view of the above-mentioned drawbacks of the conventional apparatus, and has as its object to provide a laser treatment apparatus which makes it easy to work even when the indoor lighting is dark and in which the operation state of the apparatus can be easily understood by those around. Technical issues.

[0006]

Means for Solving the Problems In order to solve the above problems, the present invention is characterized by having the following configuration.

(1) In a laser treatment apparatus for performing treatment by irradiating an affected part with a treatment laser beam, an illuminating means for illuminating a step around the laser treatment apparatus is provided in the apparatus main body or an attached unit. It is characterized by having.

(2) In the laser treatment apparatus of (1), a mode switching means for further switching an operation mode of laser irradiation, and a variable light emission for changing a light emitting state of the illumination light of the illumination means in accordance with the switching of the operation mode. Means are provided.

(3) The light emission varying means of (2) is a means for changing the illumination light to a different color or for changing the illumination light between lighting and blinking.

(4) The laser treatment apparatus according to (1), wherein: detecting means for detecting brightness around the apparatus; lighting control means for controlling lighting of the lighting means based on a signal from the detecting means; It is characterized by having.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of the external configuration of a laser photocoagulation device.

Reference numeral 1 denotes an apparatus main body, in which a laser light source for treatment, a laser light source for aiming, and an optical system for causing these laser lights to enter the optical fiber 2 are housed. Reference numeral 3 denotes a control box for setting and displaying laser irradiation conditions. Reference numeral 3b denotes a changeover switch that changes the operation mode of the apparatus from the STANDBY state to the READY state in which laser irradiation can be performed. The STANDBY state refers to an operation state in which laser light is not emitted even when the foot switch 7 is used. The READY state refers to an operation state in which the shutter is released and the laser light is emitted when the foot switch 7 is used.

Reference numeral 4 denotes a slit lamp delivery for irradiating a laser beam to the affected part of the patient's eye while observing the patient's eye. A laser irradiator 5 for irradiating the laser light guided to the optical fiber 2 and slit illumination for the patient's eye. And a binocular microscope unit 4a. Reference numeral 9 denotes a frame on which the slit lamp delivery 4 is mounted, 7 denotes a foot switch for transmitting a trigger signal for laser irradiation, and 7a denotes a cable for connecting the foot switch 7 and the apparatus main body. Reference numeral 8 denotes a power cable from the apparatus main body 1.

Numerals 10 denote foot lamps for illuminating the feet (around the floor) around the apparatus, and are provided at four locations, one on each of the four lower surfaces of the housing of the apparatus main body 1 (two locations in FIG. 1). Only visible). Each foot lamp unit 10 includes a lamp 11 that emits blue illumination light and a lamp 12 that emits red illumination light (see FIG. 2). Both the lamps 11 and 12 are mounted such that the illumination light faces downward. Illuminate the floor around the equipment. For this reason, even if it is turned on, it does not obstruct the operator's observation of the patient's eye.

FIG. 2 is a diagram showing a schematic configuration around the control system and the lamp.

Reference numeral 20 denotes a control unit for controlling the apparatus. 2
Reference numeral 1 denotes a treatment laser light source. A laser tube 22 of an ion laser, a first total reflection mirror 23, a second total reflection mirror 24, and an output mirror 25 are provided therein. In this embodiment, a krypton laser (Kr) having oscillation light of red light (647.1 nm), yellow light (568.2 nm), and green light (530.9 nm, 520.8 nm) is used as a laser tube. First total reflection mirror 2
3 is yellow light (568.2 nm) and green light (530.9 nm, 520.8 n)
m) has the property of reflecting light, and is fixedly arranged on the laser optical axis. The second total reflection mirror 24 has a characteristic of reflecting red light (647.1 nm), and is arranged on the optical path so as to be insertable and removable. The output mirror 25 has a transmittance of 1 to 3% for light in all wavelength ranges of red light, yellow light, and green light. Therefore, when the second total reflection mirror 24 is arranged on the optical path, a resonator is constituted by this and the output mirror 25, and red laser light oscillates. On the other hand, when the second total reflection mirror 24 is retracted from the optical path, a resonator is formed by the first total reflection mirror 23 and the output mirror 25, and a yellow light (568.2 nm) and a green light (530.9 nm, 520.8 nm) are formed. Laser light is oscillated.

Reference numeral 26 denotes a shutter for interrupting the optical path of the laser light emitted from the laser light source 21.
When it is brought into the READY state by b, it is removed from the optical path.
The laser light that has passed through the shutter 26 is guided to the fiber 2 by an optical system (not shown). Reference numeral 27 denotes an illumination switching unit that switches on and off the lamps 11 and 12 according to a command from the control unit 20 in response to an operation mode switching signal from the changeover switch 3b.

The operation of the apparatus having the above configuration will be described. When performing an operation, the illumination in the room is darkened by the slit lamp delivery 4 so that the patient's eyes can be easily observed. When the power of the apparatus main body 1 is turned on by a switch (not shown), the control unit 20 enters the STANDBY state, and turns on the lamp 11 through the illumination switching unit 26. Since the lower part of the apparatus is illuminated with the blue illumination light by turning on the lamp 11, an assistant or the like assisting the surgeon can confirm the presence of the cable 7a and the power cable 8 even when the room becomes dark. Makes work easier.

After the operator sits the patient at a predetermined position and does not move, the operator observes the affected part of the patient's eye illuminated by the slit light while looking into the microscope part 4a with the slit lamp delivery 4. At this time, the lower part around the device is illuminated by the illumination light from the foot lamp unit 10, but the upward illumination light is suppressed, so that the observation of the affected part is not affected.

When irradiating the laser, a switch of the control box 3 is operated to set the coagulation conditions such as the wavelength selection of the laser beam, the laser output, and the coagulation time. Select the wavelength of the laser beam according to the purpose of treatment using a color switch (not shown) (red, yellow, yellow-green, green)
Select At the same time, the control box 3 performs necessary preparations such as adjusting the amount of aiming light and adjusting the spot by a switch on the slit delivery side.

When the preparation for laser irradiation is completed, the changeover switch 3b on the control box 3 is turned ON, and the operation mode of the apparatus is changed from the STANDBY state to the READY state where laser irradiation is possible.
State. The control unit 50 controls the lamp 11 to be turned off and the lamp 12 to be turned on by the ON signal of the switch 3b via the illumination switching unit 27. The illumination light from the foot lamp unit 10 was changed to blue and switched to red illumination light, and the change in the illumination light caused the operation state of the device to be in a READY state for not only the operator but also the person in the room such as an assistant. Is easily recognized. This makes it easy to take necessary preparations for laser irradiation, such as wearing protective goggles, so that work can be performed efficiently.

After aiming the affected part with the aiming light, the surgeon depresses the foot switch 7 and sends a trigger signal for laser irradiation to the control unit 20. Laser light of the set wavelength is emitted from the laser light source 21 to perform treatment.

In the present embodiment, the colors of the illumination light emitted from each foot lamp unit 10 are two colors of blue and red. However, the present invention is not limited to this, and protective goggles corresponding to the laser light to be used are used. It is sufficient if the illumination light has a color that can be recognized even if it is displayed.

Further, depending on the protective goggles used in the laser treatment apparatus capable of emitting a multi-wavelength laser beam as used in the present embodiment, the entire area of the laser beam obtained by one piece can be controlled. Some can be protected. When such protective goggles are used, the color change may be difficult to recognize. In such a case, STANDBY state, REA
Instead of distinguishing the DY state by the change in the color of the illumination light, the illumination light may be continuously turned on when in the STANDBY state, and may be turned on and off when changed to the READY state.

Further, the illumination light from the foot lamp unit 10 is turned on when the power of the apparatus main body 1 is turned on.
It can be turned on according to the brightness of the room. That is, as shown in FIG. 3, a sensor 30 for detecting ambient brightness is provided in the apparatus main body 1, and when the brightness detected by the sensor 30 becomes darker than a predetermined value, the control unit 20 causes the foot lamp unit 10 to operate. Of the lamp is controlled. Thereby, useless lighting can be prevented.

In this embodiment, the laser device main body 1 has been described as being placed on the floor. However, for example, when the laser device main body having a laser light source is small and can be mounted on the gantry 9, the foot lamp unit 10 may be mounted. What is necessary is just to provide in the leg part of the gantry 9. Furthermore, an illumination unit is provided on the foot switch 7,
A light emitting function of emitting fluorescence or the like may be provided.

[0027]

As described above, according to the present invention,
Even if the room is dark, assistants and the like in the same room can easily check cables and the like around the device, so that it is easy to move and work. Therefore, surgery can be performed efficiently. Further, the operating state of the device can be easily informed to the roommate.

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance of an apparatus.

FIG. 2 is a block diagram showing an optical system and a control system.

FIG. 3 is a diagram showing a modification of the apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 3 Control box 7 Foot switch 7a cable 8 Power supply cable 10 Foot lamp part 11 Lamp 12 Lamp 20 Control part 27 Lighting switching part

Claims (4)

[Claims] 1. A laser treatment apparatus for performing treatment by irradiating an affected part with a treatment laser beam, wherein illumination means for illuminating a step around the laser treatment apparatus is provided in the apparatus main body or the attached unit. A laser treatment device characterized by the above-mentioned. 2. The laser treatment apparatus according to claim 1, further comprising: a mode switching unit that switches an operation mode of laser irradiation; and a light emission variable unit that changes a light emitting state of illumination light of the illumination unit in accordance with the switching of the operation mode. And a laser treatment apparatus characterized in that: 3. The laser treatment apparatus according to claim 2, wherein the light emission changing means is means for changing the illumination light to a different color or changing the illumination light between lighting and blinking. 4. A laser treatment apparatus according to claim 1, wherein said detecting means detects a brightness around the apparatus, and lighting control means controls lighting of said lighting means based on a signal from said detecting means. A laser treatment apparatus comprising: